But that would be spoofing not relay right?
Relay is when you let other users send emails to any other domain claiming be
someone in your organization.
Spoofing is when you pretend to be someone you are not, right now I cant
remember how to prevent this kind of attacks but you may search google (that’s
how I fixed it).
You may consider any type of authentication. As far as I know (from the list)
SPF is not the solution if you don’t know exactly what you are doing.
Have a great day.
Saludos.
Ing. Alfonso Alejandro Reyes Jiménez
Analista del sector Gobierno
E-mail: [email protected] <mailto:[email protected]>
Telefono: 91 50 74 00 ext. 7489
Movil: (044) 55 52 98 34 82
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De: [email protected] [mailto:[email protected]] En
nombre de mouss
Enviado el: viernes, 05 de noviembre de 2010 03:12 p.m.
Para: postfix users
Asunto: Re: Open relay question
Le 05/11/2010 20:41, Alejandro Facultad a écrit :
Thanks but, is it right if coming from Internet I enter to your mail server and
after that I send a message from your mail account to your project manager's
mail account telling he's an asshole ???
that's the same as if someone sends you a letter claiming tobe your father and
saying the same. it's a lie, not an open relay.
an open relay is when someone causes you to annoy someone else.
said otherwise: I don't care if joe tells your boss he is an asshole, whomever
joe might be. but I wouldn't be happy if _joe_ makes _you_ send _me_ a message
(whatever the message is).
I now SPF is ideal for avoid this behavior, but I think the first example is an
"open relay" feature.
Please don't talk about spf again on this list. spf devots are not welcome
here.
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